Like I said i may be wrong all the casting numbers for 318 heads all years all combinations are different from 360s all 318 heads have 178 valve all 360s had 188 340hps had 202
I've drove 'em, and I know people that race these in stock eliminator, but here is a piece of an article.
1978, MOPAR first sold the 'LA' version of the 318-4Bbl. They simply bolted on a 360 intake/thermo-quad. Shortly after, a (so-called) H.P. version was 'unleashed' on the motoring public. This version used the (current) 360 heads with the 1.88/1.60 valves. In fact, this H.P. 318 was available through 1984.
